VLC v1 finished, improve on instructions, improve on infra

desktop_env/evaluators/metrics/__init__.py

@@ -5,5 +5,5 @@ from .docs import compare_font_names, compare_subscript_contains, has_page_numbe
 from .docs import is_first_line_centered, check_file_exists, compare_contains_image
 from .pdf import check_pdf_pages
 from .libreoffice import check_libre_locale
-from .vlc import is_vlc_playing, is_vlc_recordings_folder
+from .vlc import is_vlc_playing, is_vlc_recordings_folder, is_vlc_fullscreen, compare_images, compare_audios, compare_videos
 from .general import check_csv